Self-locking safety pin



Patented 10,l 1942` UNITED STATES PATENT 1 FFICE sELF-LocxmG'sAFE'rY PIN Leopold noem-einer, New York, N. Y. Application March 24, 1941, Serial No. 384,846. 11 claims. (c1. :a4-161) This invention relates to new and useful improvements in a. safety pin.

More specically, the intention proposes the remove the same.

Still further it is proposed to characterize the pin by a piercing portion having an offset pointed end -for facilitating the engagement of the piercing portion through the piece of material.

Still further it is proposed to arrange the body portion beneath said piercing portion and to provide one end of the body portion with a head portion arranged in a manner to cooperate with the pointed end o'f said piercing portion for preventing the same from engaging the esh when in use.

Still further it is proposed to provide the other end of said body portion and the adjacent end of said piercing portion with a loop portion forming a handle for facilitating the engagement of thev pin into the piece of material.

A further object of this invention proposes the construction oi' a h ook on said head portion and the formation ot an eye on said loop portion for permitting the hook of one pin to be engaged with the eye of an adjacent pin in a manner to permit several pins to be connected together in a continuous line.

For further comprehension of the invention, and of the objects and advantages thereof, referillustrating a further modification of the invention.

Fig. 48 is another view. similar to Fig. l illustrating a furthermodiiication of thev invention.

Fig. 9 is a view looking in the direction of the line 9--9 of Fig. 8.

Fig. 10 is a. plan view of a safety pin constructed in accordance with another form of this invention.

Fig. 11 is a side elevational view of Fig. 10.

Fig. 12 is a vertical sectional view taken on the line |2-l2 0f Fig. 10.

ence will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features'of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure: r

Fig. 1 is a plan view of a safety pin in accordance with this invention.

Fig. 2 is a view looking in the direction of the line 2-2 of Fig. l.

Fig. 3 is a sectional view on the line 3 3 of Fig. 1.

constructed Fig. 4 is a sectional view on the line I-K-l of Fig. 1.

Fig. 5 is an elevational view of a pin in the process of being inserted in a piece of cloth or other material.

Fig. 6 is a view similar to Fig. l illustrating a modification of the invention.

l Fig. 'I is still another view similar to Fig. 1

Fig. 13 is a vertical sectional view taken on the line 'IS-F43 of Fig. 10.

The safety pin, according to this invention, is preferably constructed from a continuous piece of relatively stiil wire and consists of a piercing portion I0 having its front end I odset and pointed to facilitate its engagement through a piece of cloth or other material II. A body portion I2 is spaced from the piercing portion I 0 and is arranged directly beneath the piercing portion.

A loop portion I3 continues from the rear ends of the body l2 and the piercing portion l0 and forms a handle which is in a plane substantially 'ing portion I0 and the body portion I2 is formedto maintain its shape by twisting a portion of the body portion I2 around the adjacent area. of the piercing portion I0. This twisted portion is designated at I4 and extends completely around the piercing portion IIJ, as shown in Fig. 4. The

loop portion I3 is furthervarranged in a plane intermediate of the height of the plane extending between the piercing portion I 0 and the body portion I2. This loop portion has its rear bent upwards as indicated at I3, for facilitating the gripping thereof lwhen the loop portion is used as a'. handle for causing the piercing portion to l be engaged through the cloth or other material II. A'

A head portion I5 continues from the frontend of the body portion I2 and extends over the offset pointed end of the piercing portion I0 and is .in a plane substantially identical with" the plane of the loop portion I3 and has a top socket I6 for.v

encasing and holding the pointed end of the piercing` portion I0. This top socket I6 is directed at an inclination upwards andsidewards and normally the offset portion engages this socket portion in a'mannerto cause' the pointed end of the piercing portion yIl) .to be in the common plane extending between the sides of the head portion I5. Thus the head portion I5 encircles the pointed end of the piercing portion I for preventing the pointed end from engaging the flesh when the pin is used in articles of cloth.

When the offset portion is completely disengaged from its socket I6 and the pointed end is brought over the top of the head portion I it will assume the position .illustrated by the dot and dash lines I0' in Fig. 1. From an inspection of this figure it will be noted that` the piercing portion has assumed apposition to the right of the top socket or adjacent the inner end thereof so that the normal resiliency of the piercing portion I0 will cause it to be engaged into the socket portion I6 at all times when no pressure is applied to cause the same to be disengaged.

The operation of this form of the invention is as follows:

The handle portion I3 is gripped with ones fingers with the piercing portion I0 disposed above the body portion I2. The head I5 is then rested against .the material into which it is desired to engage the piercing portion I0. Pressure is then applied downwards and the pin is moved forwards to cause the piercing portion to be simultaneously disengaged from the top socket I6 and engaged into the cloth material I I. When the piercing portion is completely engaged through the cloth material pressure is released permitting the resiliency of the piercing portion to return thebffset end III*l to the top socket I6.

Due to the fact that the piercing portion II) is disposed above the body portion I2 while being engaged through the cloth, the resiliency of the return action will cause the pin to be twisted substantially through 180 or into a position in which the body portion is disposed above the piercing portion I0.when the pin is in position with relation to the cloth material II. turning of 'the pin causes the piercing portion to be automatically locked in its closed position preventing an accidental disengagement of the pin from the material. `This locking action is caused because the top socket I6 is also twisted through substantially 180 until it assumes a position in which it is directed downwards and sidewise so that when pressure is applied to the piercing portion to withdraw the pin the offset 'portion I 0ll will be more tightly drawn into the socket I6 instead of disengaging therefrom.

For removing the pinfrom the cloth material it is merely necessary to twist the same to the right through substantially 180 or into a position in which the piercing portion I0 is again disposed above the body portion I2, whereupon it is possible to manually pull the pin backwards, causing the offset end III*l of the piercing portion to be simultaneously disengaged from the top socket I6 and withdrawn from the cloth material II.

According to the modification of the invention shown in Fig. 6 a differently shaped head portion I5' and loop portion I3 is formed upon the ends of the piercing portion Il! and body portion I2. In other respects this form of the in- This accidentally turning through the required 180 unless manually turned as desired.

According to the modification of the invention shown in Figs. 8 and 9 the construction of the pin is similar to Vthat previously described except that the head portion I5" is formed tohave a hook I5* and the loop portion I3 is formed in the shape of an eye in a manner so that the hook I5 of one pin may be engaged with the eye of an adjacent pin to permit a plurality of pins to be connected togethenin a continuous line when desired. The dot and dash lines I0 shown in Fig. 9 illustrate the position of the piercing portion when pressure is applied to the head I5 to engage the pointed end of the piercing portion through the cloth or other material. In other respects this form of the invention is similar to` the previous forms.

In the modified form of the invention illustrated in Figs. 10 to 13 inclusive, a safety pin has been disclosed which is constructed from a continuous piece of relatively stiii wire, and which includes a piercing portion I0 having its front end II'Ia offset and pointed to facilitate its engagement through a piece of cloth or other material. A body portion I2 is spaced from the piercing portion I0 and is arranged directly beneath the piercing portion. A circular loop portion I3x continues from the rear ends of the body I2 and the piercing portion I0 and forms the core of a handle which is in a plane substantially atright angles to the plane extending between the body portion I2 and the piercing portion I0.

The loop portion I3 is maintained in shape by the provision of a twisted section I4 at the junctionvof the piercing portion and the body portion. A core Iiix of a head portion continues from the front end of the body portion I2 and extends over the pointed end Illa of the piercing portion, and is in a plane substantially identical to the plane of the loop portion I3". This head portion has a socket loop I6 for encasing and holding the pointed end I0 of the piercing portion I0. 'I'he core I5x of the head portion is of semi-circular shape. l

A flat sheet metal shell body 20 is mounted over the core I5x of the head portion. This shell 20 encases the top socket I6. The shell 20 is provided with a slot 2| in one wail thereof through which the pointed end IIIa of the piercing portion I0 may pass to engage and disengage the socket loop I6. The shell 20 is provided vention is similar to the previous form andI identical parts may be identified by corresponding reference numerals.

According to the modification of the invention shown in Fig. 7 the construction of the safety pin is similar to that previously described except that the portion I2' is formed with a plurality of offset bent portions I2'L for engaging against the surface of the cloth material II Vfor preventwith an auxiliary slot22 parallel to the slot 2| to facilitate gripping the shell 20 with ones finger nail for holding the same when desired. The loop portion I3x is also provided with a fiat shell body 23 mounted thereover and encasing the same. This shell 23 comprises the body of the handle of the safety pin.

In other respects this form of the invention is identical to the previous form and like parts are identified by like reference numerals.

-While I have illustrated and described the preferredA embodiments of my invention, it is to be'understood that I do not limit myself to the precise constructions herein disclosed land the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

1. A safety pin, comprising a. piercing portion having its front end offset downwards and ing twisting 0f the Din and S0 limit it against 75 pointed to facilitate its engagement through a 2,276,194 piece of material, a body portion directly beneath said piercing portion, a loop portion continuing from the rear ends of said body and piercing portions and forming a handle which is in a plane substantially at right angles to a plane extending between said body and piercing portions, and a head portion continuing from the front end of said body portion and extending over said offset pointed end in a plane substantially identical with the plane of said handle and having a top socket for encasing and holding the top of said piercing'point end, so that by grasping said handle and resting said head portion on said material and applying pressure downwards and moving said pin forwards one may force said piercing'portion throughsaid material and then may release all pressure to again permit said pointed end to reengage said socket portion.

2. A safety pin, comprising a piercing portion having its front end offset downwards and pointed to facilitate itsengagement through a l piece of material, a body portion directly beneath said piercing portion, a loop portion continuing from the rear endsof said body and piercing portions and forming a handle which is in a plane substantially at right angles to a plane extending between said body and piercing portions, and a head portion continuing from the front end of said body portion and extending over said oifset pointed end in a plane'substantially identical with the plane of said handle and having a top socket for encasing and holding the top of said piercing front end, so that by grasping said handle and resting said head portion on said material and applying pressure downwards and moving said pin forwards one may force said piercing portion through said materialand then may release all pressure to again permit said pointed end to reengage said socket portion, said body portion having its rear end twisted about said piercing portion at the rear junction thereof for forming said loop portion. 4

3. A safety pin, comprising a piercing portion having its front end offset downwards and pointed to facilitate its engagement through a piece of material, a body portion directly beneath said piercing portion, a loop portion continuing from the rear ends of said body and piercing portions and forming a handle which is in a plane substantially at right angles to a plane extending between said body and piercing portions, and a head portion continuing from the front end of said body portion and extending over said oiset pointed end in a plane substantially identical with the plane of said handle and having a top socket for encasing and holding the top of said piercing point end, so that by grasping said handle and resting said head portion on said material and applying pressure downwards andmoving said pin forwards one may force said piercing portion through said material and then may release all pressure to again permit said pointed end to reengage said socket portion, said loop portion having its 'rear bent upwardsv to facilitate the gripping thereof when the loop portion is used as a handle for engaging the piercing point through the cloth or other material.

4. A safety pin, comprising a piercing portion having its front end oiset downwards and pointed to facilitate its engagement through a piece of material, a body portion directly beneath vk.pointed end in a extending between said body and piercing portions, and a head portion continuing from the front end of said body portion and extending over said offset 'pointed end in a plane substantially identical with the plane of said handle and having a top socket for encasing and holding the top of said piercing point end, so that by grasping said handle and resting said head portion on said material and applying pressure downwards and moving said pin forwards one may force said piercing portion through said material and then may release ali pressure to again Vpermit said pointed end to reengage said socket portion, said loop 'portion being arranged in a plane intermediate of the height of' the plane extending between said piercing portion and-'said body portion. a

5. A safety pin, comprising a piercing portion having its front end oiiset downwards and pointed to facilitateits'engagement throughl a piece of material, a body portion directlybeneath said piercing portion, a loop portion continuing from the rear ends of said body and piercing portions and forming a handle which is in a plane substantially at right angles to a plane extendingbetweensaid body and piercing portions, and a head portion continuing from the front end of said body portion and extending over said offset pointed end in a plane substantially identical with the plane of said handle and having a top socket for encasing and holding the top of said vpiercing point end, so that by grasping said handle and resting said head portion on said material and applying pressure downwards and moving said pin forwards one may force said piercing portion through said material and` then may release all pressure to again permit said pointed end to reengage said socket portion, said top socket being directed upwards and sidewise at an inclination for permitting said piercing portion and said body portion to be in a common plane when the offset end of said piercing por- 'tion engages said top socket.

6. A safety pin, comprising a piercing portion having its front end offset downwards and pointed to facilitate its engagement through a piece of material, a body portion directly beneath said piercing portion, a loop portion continuing from the rear ends of said body and piercing portions and forming a handle which is in a plane substantially at right angles to a plane extending betweensaid body and piercing portions, ,and a head portion continuing from the front end of said body portion and extending over said offset plane substantially identical with the plane of said handle and having a top socket for encasingv and holding the top of said piercing point end, so that by grasping said handle and resting said head portion on said material and applying pressure downwards and y moving said pin forwards one may force said said piercing portion, a loop portion continuing from the rear ends of said body and piercing portions and forming a handle which is in a plane substantially at right angles to a'plane' a loop portion and said head piercing portion through said material and then may release all pressure to againpermit said pointed end to reengage said socket portion, said portion being of varying designs for adding to thedecorative quality of said pin.

7. A safety pin, comprising a piercing portion having its front end offset downwards and pointed to facilitate its engagement through a piece of material, a body portion directly beneath said piercing portion, a. loop portion continuing from the rear ends of said body and piercing portions and forming a handle which is in a plane substantially at right angles to a plane extending between said body and piercing portions, and a head portion continuing from the front end of said bodv portion and extending over said offset A v pointed end in a plane substantially identical with the plane of said handle and having a tp socket for encasing and holding the top of said piercing point end, so that by grasping said handle and resting said head portion 'on saidA material and applying pressure downwards and moving said pin forwards one may force said piercing portion through said material and then may release all' pressure to again permit said pointed end to reengage said socket portion, said body portion being provided with a plurality of oiIset portions for engaging said cloth material when the pin is engaged therewith for preventing an accidental turning for removing said pin.

8. A safety pin, comprising a piercingv portion having its front end offset downwards and pointed to facilitate its engagement through a piece of material, a body-portion directly beneath said piercing portion, a loop portion continuing from the rear ends of said body and piercing portions and forming a handle'which is in a plane substantially at right angles to a plane extending between said body and piercing portions, and a head portion continuing from the front end of said body portion and extending over said offset pointed end in a plane substantially identical with the plane of said handle and having a top socket for encasing and holding the top of said piercing point end, so that by grasping said handle and resting said head portion on said material and applying pressure downwards and moving said pin forwards one may force said piercing portion through said material and then may release all pressure to `again permit said pointed end to reengage said socket portion, said loop portion being in the form of an eye, said head portion being formed with a hook engageable with the eye of an adjacent pin for permitting a plurality of pins to be connected together in a continuous line when desired.

9. A safety pin,vcomprising a piercing portion having its front end offset downwards and pointed to facilitate its engagement through a piece of material, a body portion directly beneath said piercing portion, aloop portion continuing from `the rear endsof said body and piercing portions applying pressure downwards and moving said pin forwards one may force said piercing portion through said material and then may release all pressure to again permit said pointed end to reengage said socket portion, and a flat shell mounted over said loop portion.

l0. A safety pin, comprising a piercing portion having its front end offset downwards and pointed to facilitate its engagement through a piece of material, a body portion directly beneath said piercing portion, a loop portion continuing from the' rear ends of said body and piercing portions and forming a handle which is in a plane substantially at right angles to 'a plane extending between said body and piercing portions, a head portion continuing from the front end of said body portion and extending over said offset pointed end in a plane substantially identical with the plane of said handle and having a top socket for encasing -and holding the top of said piercing point end, so that by grasping said handle and resting said head portion on said material and applying pressure downwards and moving said pin forwards one'may force said piercing portion through said material and then may release all pressure to again permit said pointed end to reengage said socket portion, and a fiat shell mounted over said head portion and encasing said top socket and having a slot in one wall thereof through which the point of said piercing portion may pass to engage and disengage said top socket.

A11. A safety pin, comprising a piercing portion having its front end oifset downwards and pointed to facilitate its engagement through a piece of material, a body portion directly beneath said piercing portion, a loop portion continuing from the rear ends of said body and piercing portions and forming a handle which is in a plane substantially at right angles toa plane extending between said body and piercing portions, a head portion continuing from the front end of said body portion and. extending over said oil'set pointed end in aplane substantially identical with the plane of said handle and having a top socket for encasing and holding the top of said piercing point end, so that by grasping said handle and resting said head portion on said material and applying pressure downwards and moving said pin forwards one may force said piercing portion through said material and then may re.

lease all pressure to again permit said pointed end to reengage said socket portion, and a fiat shell mounted over said head portion and encasing said top socket and having a slot in one wall thereof through which the point of said piercing portion may pass to engage and disengage said top socket, and aflat shell mounted over said 

